Humidity calibration method, system and device

Abstract

The invention discloses a humidity calibration method, system and device, and belongs to the technical field of humidity measurement, and the method comprises the steps: obtaining the temperature of a temperature and humidity sensor, the temperature of an air inlet, and the temperature of an absolute humidity change device; the mixing proportion is calculated according to the obtained temperature of the temperature and humidity sensor, the obtained temperature of the air inlet and the obtained temperature of the absolute humidity change device; the relative humidity passing through the absolute humidity change device is calculated, and the relative humidity passing through the absolute humidity change device and the relative humidity of the temperature and humidity sensor are converted to the same temperature; and calculating the relative humidity of the air inlet according to the mixing proportion of the relative humidity passing through the absolute humidity change device and the relative humidity of the temperature and humidity sensor at the same temperature. According to the humidity calibration method, system and device, an innovative humidity calibration algorithm is adopted, the humidity of the target area is calculated through the mixing proportion of the temperature of the temperature and humidity sensor, the temperature of the air inlet and the temperature of the absolute humidity change device, and more accurate humidity control is achieved.

Description

Technical Field

[0001] The present application relates to the field of humidity measurement technology, and in particular to a humidity calibration method, system and device. Background Art

[0002] In existing air-conditioning systems, humidity sensors are usually installed at the air inlet or return air outlet to detect the ambient humidity and adjust the dehumidification or humidification function of the air conditioner accordingly. However, due to the structural design of the air conditioner, space limitations or the influence of the installation environment, it is difficult to install humidity sensors at the air inlet position for some models. Traditional humidity calibration methods rely on the humidity sensor data at the air inlet or return air outlet. If the sensor cannot be installed at this location, it may cause humidity control deviations, resulting in inaccurate humidity measurements, affecting the humidity control effect and user experience of the air conditioner. In addition, the temperature and humidity distribution inside the air conditioner is uneven, and may not accurately reflect the actual ambient humidity. Therefore, there is an urgent need for a new humidity calibration method that can accurately calibrate the air conditioner humidity without relying on the air inlet humidity sensor, thereby improving the accuracy and reliability of humidity control. Summary of the invention

[0003] The present application aims to provide an efficient and accurate humidity calibration method, system and device, which are particularly suitable for scenarios where traditional humidity sensors cannot be installed due to space or structural limitations.

[0004] In order to achieve the above-mentioned purpose, the technical solution of this application is: A humidity calibration method, comprising: Obtain the temperature of the temperature and humidity sensor, the air inlet temperature, and the absolute humidity change device temperature; Calculate the mixing ratio based on the obtained temperature of the temperature and humidity sensor, the air inlet temperature, and the temperature of the absolute humidity changing device; Calculating the relative humidity after the absolute humidity changing device, and converting the relative humidity after the absolute humidity changing device and the relative humidity of the temperature and humidity sensor to the same temperature; The relative humidity at the same temperature passing through the absolute humidity changing device and the relative humidity of the temperature and humidity sensor are combined to calculate the relative humidity at the air inlet through the mixing ratio.

[0005] Optionally, the mixing ratio includes the ratio of air at the air inlet and the ratio of air passing through the absolute humidity changing device, which is expressed by the formula: Among them, Pin represents the air proportion at the air inlet, Pout represents the air proportion passing through the absolute humidity changing device; Td represents the temperature of the temperature and humidity sensor, Tin represents the air inlet temperature, and Tout represents the temperature of the absolute humidity changing device.

[0006] Optionally, the calculation of the relative humidity after passing through the absolute humidity change device includes: if the relative humidity after passing through the absolute humidity change device is greater than 100%, setting the relative humidity after passing through the absolute humidity change device to 100%; if the relative humidity after passing through the absolute humidity change device is not saturated, the relative humidity after passing through the absolute humidity change device is equal to the relative humidity of the temperature and humidity sensor.

[0007] Optionally, the same temperature includes an air inlet temperature; The relative humidity after the absolute humidity changing device and the relative humidity of the temperature and humidity sensor are converted to the same temperature and expressed by the formula: Wherein, etarget represents the relative humidity conversion formula at different temperatures, e represents relative humidity, e@Ttarget represents relative humidity at target temperature, e@Tactual represents relative humidity at actual temperature, Tactual represents actual temperature, and Ttarget represents target temperature.

[0008] Optionally, the relative humidity at the air inlet is calculated by the mixing ratio, which is expressed by the formula: Among them, eout@Tin represents the relative humidity after the absolute humidity changing device at the inlet temperature, ein@Tin represents the inlet relative humidity at the inlet temperature, and ed@Tin represents the relative humidity of the temperature and humidity sensor at the inlet temperature.

[0009] Optionally, after calculating the relative humidity of the air inlet through the mixing ratio, the method further includes: calculating the relative humidity of the target area according to the relative humidity of the air inlet.

[0010] Optionally, calculating the relative humidity of the target area according to the relative humidity of the air inlet includes: The calculation of the air dehumidification capacity of the air conditioner is expressed as follows: Wherein, W represents the dehumidification amount of the air by the air conditioner; ein@Tout represents the relative humidity of the air inlet at the temperature of the absolute humidity change device, eout@Tout represents the relative humidity of the absolute humidity change device at the temperature of the absolute humidity change device, and Qf represents the fan ventilation volume; Considering the fan ventilation volume and the state variable of the air outlet blade at the current moment, the relative humidity of the target area is obtained, which is expressed as follows: Among them, et@Tout[p] represents the relative humidity of the target area under the temperature of the absolute humidity change device; p1, p2, p3 represent different position parameters of the target area; D represents the state variable of the air outlet blade at the current moment.

[0011] A humidity calibration system, performing a humidity calibration method as described above, comprising: Temperature acquisition module, mixing ratio calculation module, temperature conversion module, air inlet relative humidity calculation module, target area relative humidity calculation module; The temperature acquisition module, the mixing ratio calculation module, the temperature conversion module, the air inlet relative humidity calculation module and the target area relative humidity calculation module are connected in sequence.

[0012] A humidity calibration device, which executes a humidity calibration method as described in any one of the above, comprises: an air conditioner indoor unit and a target area; the first end of the air conditioner indoor unit is connected to the first end of the target area and the second end of the air conditioner indoor unit.

[0013] Optionally, the air conditioner indoor unit includes: an absolute humidity changing device, a fan and an air supply outlet, an air inlet, and a temperature and humidity sensor; the first end of the air inlet is connected to the first end of the absolute humidity changing device, the second end of the air inlet is connected to the first end of the temperature and humidity sensor, the second end of the absolute humidity changing device is connected to the first end of the fan and the air supply outlet, the second end of the fan and the air supply outlet is the first end of the air conditioner indoor unit, the third end of the fan and the air supply outlet is connected to the second end of the temperature and humidity sensor, and the third end of the air inlet is the second end of the air conditioner indoor unit.

[0014] The humidity calibration method, system and device provided in the present application use an innovative humidity calibration algorithm to accurately calculate the humidity of the target area based on the mixed ratio of the temperature and humidity sensor temperature, the air inlet temperature and the temperature of the absolute humidity change device, and use a simple linear formula to convert the relative humidity at different temperatures, replacing the complex calculation of absolute humidity, thereby significantly reducing the computational complexity while ensuring accuracy. The present application can achieve high-precision humidity control without relying on an air inlet humidity sensor, greatly reducing the restrictions on the hardware installation location, and is suitable for various air-conditioning models. It has excellent compatibility and scalability, which not only reduces the need for additional sensors and reduces production costs, but also significantly improves the comfort and energy efficiency of the air-conditioning through precise humidity regulation, meeting users' higher demands for intelligent environmental regulation.

[0015] In order to make the above features and advantages of the application more obvious and easy to understand, the following embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A flow chart of a humidity calibration method provided in this application.

[0017] Figure 2 A module diagram of a humidity calibration system provided in this application.

[0018] Figure 3 A block diagram of a humidity calibration device provided in this application. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the embodiment of the present application clearer, the technical solution of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] In one embodiment of the present application, please refer to Figure 1 , Figure 1 A flow chart of a humidity calibration method provided in this application. This application provides a humidity calibration method, including: Step S1: Obtain the temperature of the temperature and humidity sensor, the air inlet temperature, and the absolute humidity change device temperature.

[0021] Step S2: Calculate the mixing ratio based on the obtained temperature of the temperature and humidity sensor, the air inlet temperature, and the absolute humidity change device temperature.

[0022] Step S3: Calculate the relative humidity after the absolute humidity changing device, and convert the relative humidity after the absolute humidity changing device and the relative humidity of the temperature and humidity sensor to the same temperature.

[0023] Step S4: The relative humidity at the air inlet is calculated by mixing the relative humidity at the same temperature with the relative humidity of the temperature and humidity sensor through the relative humidity of the absolute humidity changing device.

[0024] In step S1, see Figure 1 In step S1, the temperature and humidity sensor temperature T is directly obtained by the temperature and humidity sensor, the air inlet temperature sensor, and the temperature sensor in the absolute humidity change device. d , air inlet temperature T in , absolute humidity change device temperature T out .

[0025] Specifically, the absolute humidity changing device is a device that causes the absolute humidity in the indoor unit of the air conditioner to change.

[0026] Specifically, the temperature and humidity sensor is located in a position in the air conditioner indoor unit that is convenient for installing the temperature and humidity sensor.

[0027] In step S2, see Figure 1 In step S2, according to the temperature T of the temperature and humidity sensor d , air inlet temperature T in , absolute humidity change device temperature T out Calculate the mixing ratio.

[0028] As an example, the absolute humidity change device of the air conditioner will change the absolute humidity of the air due to condensation. Apart from the absolute humidity change device, it can be simply assumed that the absolute humidity of the air conditioner will not change. The air measured by the temperature and humidity sensor can be understood as the air obtained by mixing the air passing through the absolute humidity change device and the air directly from the air inlet in a certain proportion. Therefore, the relative humidity of the temperature and humidity sensor is d It can be understood as the absolute humidity E of the air passing through the absolute humidity changing device out The absolute humidity E of the air directly from the air inlet in Obtained by mixing in a certain proportion.

[0029] As an example, the air passing through the absolute humidity changing device can be understood as the air at the air outlet. The coefficient determined by the mixing ratio, the fan gear position S and the state variable D of the blades at the air outlet at the current moment is defined as M internal =P in +P out =1, where M internal is the normalization parameter. in Indicates the air proportion at the air inlet, P out Indicates the proportion of air passing through the absolute humidity change device, the mixed ratio includes the proportion of air at the air inlet P in and the ratio of air passing through the absolute humidity change device P out .

[0030] As an example, the calculation of the mixing ratio includes two schemes. In the first scheme, the mixing ratio is obtained by indexing the table and linear interpolation based on the fan gear position S and the current air outlet blade state variable D through experiments.

[0031] In the second scheme, according to the obtained temperature T of the temperature and humidity sensor d , air inlet temperature T in , absolute humidity change device temperature T out The mixing ratio of the air at the air inlet and the air passing through the absolute humidity changing device at the temperature and humidity sensor is calculated. Assuming that the heat capacity of the air at these three locations is equal, the expression is: Specifically, if the temperature differences at these three locations are small, the error of the temperature sensor will result in a large difference in the mixing ratio.

[0032] In step S3, see Figure 1 Step S3 in the calculation of the relative humidity e after the absolute humidity change device out , the relative humidity e after the absolute humidity change device out Relative humidity with temperature and humidity sensor d Switch to the same temperature.

[0033] As an example, absolute humidity is used when mixing humidity. Relative humidity at different temperatures cannot be directly calculated using the mixing ratio, but the absolute humidity formula is relatively complex. Therefore, by converting relative humidity to the same temperature, relative humidity can be used for proportional calculation. The relative humidity conversion formula at different temperatures is expressed as: Wherein, etarget represents the relative humidity conversion formula at different temperatures, e represents relative humidity, e@Ttarget represents relative humidity at target temperature, e@Tactual represents relative humidity at actual temperature, Tactual represents actual temperature, and Ttarget represents target temperature.

[0034] As an example, the calculation of the relative humidity after the absolute humidity changing device includes: when the temperature T of the absolute humidity changing device in the air conditioner is out If the relative humidity e after the absolute humidity change device out @T out When it is greater than 100%, that is, when it reaches saturation, set the relative humidity e after passing through the absolute humidity change device out @T out =100%; if the relative humidity after the absolute humidity change device is out @T out If saturation does not occur, the absolute humidity inside the air conditioner will be relatively consistent, that is, the relative humidity after the absolute humidity change device is out @T out Equal to the relative humidity e of the temperature and humidity sensor d @T out , expressed as: Among them, eout@Tout represents the relative humidity of the absolute humidity change device at the temperature Tout of the absolute humidity change device, and ed@Tout represents the relative humidity of the temperature and humidity sensor at the temperature Tout of the absolute humidity change device, which is obtained by the relative humidity conversion formula at different temperatures, expressed as: Wherein, ed@Td represents the relative humidity of the temperature and humidity sensor at the temperature of the temperature and humidity sensor, which is directly obtained by the temperature and humidity sensor.

[0035] Furthermore, since the goal of the humidity calibration method of the present application is to calibrate the air inlet relative humidity ein, the relative humidity required for the proportional calculation is converted to the air inlet temperature Tin, and the same temperature is the air inlet temperature Tin.

[0036] As an example, the relative humidity eout passing through the absolute humidity changing device at the temperature Tout of the absolute humidity changing device is converted to the air inlet temperature Tin by using the relative humidity conversion formula at different temperatures, which is expressed as: Among them, eout@Tin represents the relative humidity after passing through the absolute humidity changing device at the inlet temperature, and eout@Tout represents the relative humidity after passing through the absolute humidity changing device at the absolute humidity changing device temperature.

[0037] As an example, the relative humidity ed of the temperature and humidity sensor at the temperature Td of the temperature and humidity sensor is converted to the relative humidity at the air inlet temperature Tin by using the relative humidity conversion formula at different temperatures, which is expressed as: Among them, ed@Tin represents the relative humidity of the temperature and humidity sensor at the air inlet temperature.

[0038] In step S4, see Figure 1 In step S4, the relative humidity e at the same temperature after the absolute humidity change device is changed out Relative humidity with temperature and humidity sensor d , the relative humidity at the air inlet is calculated by the mixing ratio in .

[0039] Furthermore, at the same air inlet temperature Tin, the relative humidity eout after the absolute humidity changing device and the relative humidity ed of the temperature and humidity sensor are used to calculate the relative humidity ein at the air inlet through the mixing ratio, which is expressed as: Wherein, ein@Tin represents the relative humidity at the inlet temperature.

[0040] Specifically, the relative humidity ein at the air inlet is obtained, that is, the humidity calibration is completed.

[0041] As another example, after step S4, the method further includes: in Calculate the relative humidity e in the target area t [p], thus determining the subsequent working status of the air conditioner.

[0042] As an example, the factors that affect the relative humidity gradient distribution in the target area include: the dehumidification amount W of the air by the air conditioner, the ventilation amount Qf of the fan, and the state variable D of the air outlet blade at the current moment.

[0043] As an example, the dehumidification amount W of the air by the air conditioner is calculated using the formula: Among them, the fan ventilation volume Qf is converted by the fan gear S, and the fan gear S is obtained by the air conditioning controller; ein@Tout represents the relative humidity of the air inlet at the temperature of the absolute humidity change device, which is obtained by the relative humidity conversion formula at different temperatures and is expressed as: .

[0044] Furthermore, considering the fan ventilation volume Qf of the air conditioner and the state variable D of the air outlet blade at the current moment, the relative humidity of the target area under the temperature Tout of the absolute humidity change device is obtained, which is expressed by the formula: Among them, et@Tout[p] represents the relative humidity of the target area under the temperature of the absolute humidity change device; p1, p2, and p3 represent different position parameters of the target area; and the state variable D of the air outlet blade at the current moment is obtained through the air conditioning controller.

[0045] Furthermore, the target area temperature Tt[p] of different position parameters is obtained according to the built-in parameters of the laboratory, and the relative humidity of the target area under the target area temperature Tt[p] is obtained by the relative humidity conversion formula at different temperatures, which is expressed as: Among them, et@Tt[p] represents the relative humidity of the target area at the target area temperature.

[0046] In another embodiment of the present application, please refer to Figure 2 , Figure 2 This is a module diagram of a humidity calibration system provided by the present application. The present application provides a humidity calibration system, which executes a humidity calibration method as described above, including: Temperature acquisition module 1, used to obtain the temperature T of the temperature and humidity sensor d , air inlet temperature T in , absolute humidity change device temperature T out ; Mixing ratio calculation module 2, used to calculate the temperature T of the temperature and humidity sensor according to the obtained temperature T d , the air inlet temperature T in , the temperature of the absolute humidity changing device T out Calculate the mixing ratio; Temperature conversion module 3, used to calculate the relative humidity e after the absolute humidity change device out , the relative humidity e of the absolute humidity changing device out Relative humidity with temperature and humidity sensor d Convert to the same temperature; The relative humidity calculation module 4 at the air inlet is used to calculate the relative humidity e at the same temperature after passing through the absolute humidity changing device. out Relative humidity with temperature and humidity sensor d , the relative humidity e at the air inlet is calculated by the mixing ratio in ; As an example, the temperature acquisition module 1, the mixing ratio calculation module 2, the temperature conversion module 3 and the air inlet relative humidity calculation module 4 are connected in sequence.

[0047] As an example, the temperature conversion module 3 is also used to: relative humidity at different temperatures, such as: relative humidity e of the temperature and humidity sensor d , relative humidity at air inlet in , relative humidity of target area t [p] is converted to obtain the relative humidity at the target temperature.

[0048] As another example, the humidity calibration system further includes: a target area relative humidity calculation module 5 for calculating the relative humidity of the air inlet according to the relative humidity e in Calculate the relative humidity e in the target area t [p].

[0049] As an example, the air inlet relative humidity calculation module 4 is connected to the target area relative humidity calculation module 5 .

[0050] In another embodiment of the present application, please refer to Figure 3 , Figure 3 A block diagram of a humidity calibration device provided by the present application. The present application provides a humidity calibration device, which performs a humidity calibration method as described above, including: an air conditioner 51 and a target area 52; the first end of the air conditioner 51 is connected to the first end of the target area 52, and the air conditioner 51 provides air with changed absolute humidity to the target area 52; the first end of the air conditioner 51 is connected to the second end of the air conditioner 51, and the air conditioner 51 provides air with changed absolute humidity to the air conditioner 51.

[0051] As an example, the air conditioner indoor unit 51 includes: an absolute humidity changing device 511 , a fan and air outlet 512 , an air inlet 513 , and a temperature and humidity sensor 514 . The first end of the air inlet 513 is connected to the first end of the absolute humidity changing device 511, and the air inlet 513 provides air to the absolute humidity changing device 511; the second end of the air inlet 513 is connected to the first end of the temperature and humidity sensor 514, and the air inlet 513 provides air to the temperature and humidity sensor 514; the second end of the absolute humidity changing device 511 is connected to the first end of the fan and air supply port 512, and the absolute humidity changing device 511 provides air with changed absolute humidity to the fan and air supply port 512; the second end of the fan and air supply port 512 is the first end of the air conditioner indoor unit 51, and the third end of the fan and air supply port 512 is connected to the second end of the temperature and humidity sensor 514, and the fan and air supply port 512 provide air with changed absolute humidity to the temperature and humidity sensor 514; the third end of the air inlet 513 is the second end of the air conditioner indoor unit 51.

[0052] As an example, the fan and air outlet 512 include: a fan and an air outlet, wherein the fan includes a blower for obtaining the blower gear S through the air conditioning controller; the air outlet includes an air outlet blade for obtaining the air outlet blade state variable D at the current moment.

[0053] As an example, the air conditioner indoor unit 51 is installed with at least three temperature sensors and one humidity sensor, the temperature sensor includes: a temperature sensor in an absolute humidity change device, a temperature and humidity sensor, and an air inlet temperature sensor, and the humidity sensor includes a temperature and humidity sensor.

[0054] Specifically, the absolute humidity changing device includes a temperature sensor in the absolute humidity changing device, which is used to obtain the absolute humidity changing device temperature Tout; the air inlet includes the air inlet temperature sensor, which is used to obtain the air inlet temperature Tin; the temperature sensor of the temperature and humidity sensor is used to obtain the temperature and humidity sensor temperature Td, and the humidity sensor of the temperature and humidity sensor is used to obtain the relative humidity ed of the temperature and humidity sensor.

[0055] As an example, the absolute humidity changing device 511 causes the absolute humidity of the air conditioner indoor unit 51 to change.

[0056] As an example, the absolute humidity changing device 511 includes: an evaporator.

[0057] As an example, the temperature and humidity sensor 514 is installed in a position of the air conditioner indoor unit 51 that is convenient for installing the temperature and humidity sensor 514 .

[0058] As an example, the installation location of the temperature and humidity sensor 514 includes: the air conditioner display control location.

[0059] The humidity calibration method, system and device provided in the present application use an innovative humidity calibration algorithm to accurately calculate the humidity of the target area based on the mixed ratio of the temperature and humidity sensor temperature, the air inlet temperature and the temperature of the absolute humidity change device, and use a simple linear formula to convert the relative humidity at different temperatures, replacing the complex calculation of absolute humidity, thereby significantly reducing the computational complexity while ensuring accuracy. The present application can achieve high-precision humidity control without relying on an air inlet humidity sensor, greatly reducing the restrictions on the hardware installation location, and is suitable for various air-conditioning models. It has excellent compatibility and scalability, which not only reduces the need for additional sensors and reduces production costs, but also significantly improves the comfort and energy efficiency of the air-conditioning through precise humidity regulation, meeting users' higher demands for intelligent environmental regulation.

[0060] Although the present application has been disclosed as above with the embodiments, it is not intended to limit the present application. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be determined by the scope of the attached patent application.

Claims

1. A humidity calibration method, characterized in that: include, Obtain the temperature of the temperature and humidity sensor, the air inlet temperature, and the absolute humidity change device temperature; Calculate the mixing ratio based on the obtained temperature of the temperature and humidity sensor, the air inlet temperature, and the temperature of the absolute humidity changing device; Calculating the relative humidity after the absolute humidity changing device, and converting the relative humidity after the absolute humidity changing device and the relative humidity of the temperature and humidity sensor to the same temperature; The relative humidity at the same temperature passing through the absolute humidity changing device and the relative humidity of the temperature and humidity sensor are combined to calculate the relative humidity at the air inlet through the mixing ratio.

2. The humidity calibration method according to claim 1, characterized in that: The mixing ratio includes the air ratio at the air inlet and the air ratio passing through the absolute humidity changing device, which is expressed by the formula: Among them, Pin represents the air proportion at the air inlet, Pout represents the air proportion passing through the absolute humidity changing device; Td represents the temperature of the temperature and humidity sensor, Tin represents the air inlet temperature, and Tout represents the temperature of the absolute humidity changing device.

3. The humidity calibration method according to claim 1, characterized in that: The calculation of the relative humidity after passing through the absolute humidity changing device includes: if the relative humidity after passing through the absolute humidity changing device is greater than 100%, setting the relative humidity after passing through the absolute humidity changing device to 100%; if the relative humidity after passing through the absolute humidity changing device is not saturated, the relative humidity after passing through the absolute humidity changing device is equal to the relative humidity of the temperature and humidity sensor.

4. The humidity calibration method according to claim 1, characterized in that: The same temperature includes the air inlet temperature; The relative humidity after the absolute humidity changing device and the relative humidity of the temperature and humidity sensor are converted to the same temperature and expressed by the formula: Wherein, etarget represents the relative humidity conversion formula at different temperatures, e represents relative humidity, e@Ttarget represents relative humidity at target temperature, e@Tactual represents relative humidity at actual temperature, Tactual represents actual temperature, and Ttarget represents target temperature.

5. The humidity calibration method according to claim 3, characterized in that: The relative humidity at the air inlet is calculated by the mixing ratio and is expressed by the formula: Among them, eout@Tin represents the relative humidity after the absolute humidity changing device at the inlet temperature, ein@Tin represents the inlet relative humidity at the inlet temperature, and ed@Tin represents the relative humidity of the temperature and humidity sensor at the inlet temperature.

6. The humidity calibration method according to claim 5, characterized in that: After the relative humidity of the air inlet is calculated according to the mixing ratio, the method further includes: calculating the relative humidity of the target area according to the relative humidity of the air inlet.

7. The humidity calibration method according to claim 6, characterized in that: Calculating the relative humidity of the target area according to the relative humidity of the air inlet comprises: The calculation of the air dehumidification capacity of the air conditioner is expressed as follows: Wherein, W represents the dehumidification amount of the air by the air conditioner; ein@Tout represents the relative humidity of the air inlet at the temperature of the absolute humidity change device, eout@Tout represents the relative humidity of the absolute humidity change device at the temperature of the absolute humidity change device, and Qf represents the fan ventilation volume; Considering the fan ventilation volume and the state variable of the air outlet blade at the current moment, the relative humidity of the target area is obtained, which is expressed as follows: Among them, et@Tout[p] represents the relative humidity of the target area under the temperature of the absolute humidity change device; p1, p2, p3 represent different position parameters of the target area; D represents the state variable of the air outlet blade at the current moment.

8. A humidity calibration system, executing a humidity calibration method according to any one of claims 1 to 7, characterized in that: include: Temperature acquisition module, mixing ratio calculation module, temperature conversion module, air inlet relative humidity calculation module, target area relative humidity calculation module; The temperature acquisition module, the mixing ratio calculation module, the temperature conversion module, the air inlet relative humidity calculation module and the target area relative humidity calculation module are connected in sequence.

9. A humidity calibration device, which performs a humidity calibration method according to any one of claims 1 to 7, characterized in that: include: An air conditioner indoor unit and a target area; the first end of the air conditioner indoor unit is connected to the first end of the target area and the second end of the air conditioner indoor unit.

10. The humidity calibration device according to claim 9, characterized in that: The indoor unit of the air conditioner includes: an absolute humidity changing device, a fan and an air supply outlet, an air inlet, and a temperature and humidity sensor; the first end of the air inlet is connected to the first end of the absolute humidity changing device, the second end of the air inlet is connected to the first end of the temperature and humidity sensor, the second end of the absolute humidity changing device is connected to the first end of the fan and the air supply outlet, the second end of the fan and the air supply outlet is the first end of the indoor unit of the air conditioner, the third end of the fan and the air supply outlet is connected to the second end of the temperature and humidity sensor, and the third end of the air inlet is the second end of the indoor unit of the air conditioner.

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